Air-conditioning indoor unit heat exchanger fin guide structure

Abstract

The invention provides a flow guide structure for a heat exchanger fin of an air-conditioning indoor unit. A blocking reinforced rib is arranged between an upper cover metal plate and an evaporator top fin, and a sealing gasket is arranged between the upper cover metal plate and the blocking reinforced rib. A fin noise production position of the heat exchanger fin is found by analyzing the ventilation situation of the heat exchanger fin of the indoor unit, and air penetration is prevented through structural improvement, so that a fin noise is eliminated; the flow guide structure is easy to operate, simple and easy, low in processing cost, good in using effect, cost-saving, and convenient to install; and the mechanical strength of an overall unit frame body is improved.

Description

technical field [0001] The invention relates to an air duct structure of an indoor unit of an air conditioner, in particular to a fin guide structure at an air outlet of a heat exchanger of an indoor unit of an air conditioner. Background technique [0002] The air-conditioning ceiling-buried indoor unit is a new model developed in response to the diverse needs of the market and changes in the overall decoration space. It is suitable for installation and maintenance with a small width, especially for small-sized families. Now users have higher and higher requirements for reducing the noise of air conditioners. Because the household ceiling-buried indoor units are installed in the bedroom, it is even more necessary to effectively control the noise level of the air conditioner indoor unit and not allow abnormal noise to achieve a comprehensive mute effect. . However, due to the structure of the air-conditioning indoor unit itself, most ceiling-buried indoor units have high-fr...

AI Technical Summary

Problems solved by technology

However, due to the structure of the air-conditioning indoor unit itself, most of the ceiling-buried indoor units have high-frequency fin-blowing noises that are difficult to eliminate, which often leads to user complaints

[0003] The existing method to solve this kind of fin noise problem is to add a backflow plate on the air outlet side to make the wind blown by the fan more smooth, so that the wind blowing on the fin can pass through vertically, thereby eliminating the fin noise, but the deflector The structure is complex, and it takes many theoretical designs and tests to find a better solution. Moreover, the internal space of the indoor indoor unit for household use is compact. If the deflector is used, the internal space is limited, it is difficult to install, and the cost of the whole machine increases. also more

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